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WorkCentre Pro 423/428 2-138 CHAPTER 2 TROUBLESHOOTING

03/02 Level 2 Troubleshooting

Solenoid/Clutch not energized FIP

Before this FIP, check that the solenoid and clutch operate with

no mechanical problems.

Enter Chain XX Func XXX in Diag (CE) mode. Turn on the

power.

Is the voltage +24 VDC between the PWB pin 3(+) and GND(-)?

Is the voltage +24 VDC between the Solenoid/clutch pin

2(+) and GND(-)?

Is the voltage +24 VDC between the Solenoid/clutch

Pin 1 (+) and GND(-)?

Check the wire between the PWB pin 4 and

Solenoid/clutch pin 1 for an open wire or poor

contact.

If no problem is found, replace the PWB.

Replace the Solenoid/Clutch.

Check between the PWB pin 3 and Solenoid/clutch pin 2

for an open wire or poor contact.

Replace the PWB.

Solenoid/Clutch keep energized FIP

Turn off the power. Disconnect the PWB connector.

Is the resistance less than 10 between the connector

Pin 3 and Frame?

Replace the PWB.

Check the circuit from PWB pin 3 to solenoid/clutch pin 2 for

short circuit. If no problem is found, replace the Solenoid/clutch.

Relay PWB

Xerox WorkCentre Pro 423 Service Manual

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